- Privacy Door Knob Function: This tulip round door knob features a secure locking mechanism that allows for privacy while still enabling emergency access from the outside. Ideal for guest rooms, bedrooms, and bathrooms, it meets all your privacy needs without the hassle of keys. Made from durable stainless steel with a brushed nickel finish. - Fits Standard Door Sizes: The knob comes with an adjustable latch suitable for standard door thicknesses of 1-3/8 inches to 1-3/4 inches (35mm to 45mm). It features a reversible design, allowing for easy installation on both right and left-handed doors. Note that the latch plate is non-removable. - Quality Construction: Built to last, this door knob has a strong internal structure and a smooth edge for comfortable use. It has passed a rigorous 72-hour salt spray test, ensuring resilience against corrosion. With a durability rating of over 250,000 cycles, it is designed to withstand years of use without bending or losing shape. - Easy Installation: All necessary accessories and detailed installation instructions are included. The long screws come preinstalled; simply remove them before proceeding. You can install this door knob quickly and easily with just a basic toolset—no need for professional installation. Use Scenarios: 1. Perfect for securing guest rooms where privacy is essential while allowing for emergency access. 2. Ideal for bathroom doors, providing peace of mind while maintaining ease of use for family members. 3. Suitable for interior locking doors in homes or offices, ensuring confidentiality and comfort. Choose this stainless steel privacy door knob for a reliable, stylish, and functional solution to your locking needs.